mitmproxy: proxy any network traffic through your local machine

mitmproxy is your swiss-army knife for interactive HTTP/HTTPS proxy. In fact, it can be used to intercept, inspect, modify and replay web traffic such as HTTP/1, HTTP/2, WebSockets, or any other SSL/TLS-protected protocols.

Moreover, mitproxy has a powerful Python API offers full control over any intercepted request and response.

You could use negative regex with --ignore-hosts to only watch specific domains. Of course, you are still able to blacklist any domain you don't want: --ignore-hosts 'apple.com|icloud.com|itunes.com|facebook.com|googleapis.com|crashlytics.com'.

Currently, changing the Host server for HTTP/2 connections is not allowed, but you could just disable HTTP/2 proxy to solve the issue if you don't need HTTP/2 for local development.